Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Comparing the KE of Alpha and Beta particles
- Hemanta
- · Replies 4 ·
Determine the Electrical potential at a given point
- Karl Karlsson
- · Replies 7 ·
A question about the specific heat and Debye temperature
- patric44
- · Replies 10 ·
Correct statement regarding a conductor in a magnetic field
- songoku
- · Replies 11 ·
Collision between a block and a curved up-ramp surface
- rashida564
- · Replies 11 ·
Gauge pressure of water oozing out of a pipe
- brotherbobby
- · Replies 11 ·
Why Do Light Beams Need to Be Parallel in Young's Double Slit Experiment?
- Crystal037
- · Replies 7 ·
Calculating the magnetic field of an infinite solenoid
- Adesh
- · Replies 4 ·
The definition of the proper time
- shallod
- · Replies 3 ·
Deriving the electrostatic pressure of a water droplet
- etotheipi
- · Replies 16 ·
Shear stress, Direct stress and factor of safety -- help please
- jordanbeaton
- · Replies 2 ·
Time period of a periodic function
- Kaushik
- · Replies 3 ·
Time period of an object traveling in an elliptical orbit
- Saptarshi Sarkar
- · Replies 10 ·
Find the velocity of the wind relative to the boat
- gnits
- · Replies 6 ·
Find the force so that all blocks are at rest with respect to each other
- songoku
- · Replies 20 ·
Cat chasing a dog, not in a straight path
- Bipul Neupane
- · Replies 3 ·
Maximum Acceleration: I Got the Correct Answer
- rashida564
- · Replies 22 ·
Diffraction Grating: Possible variables for Experiment
- KDPhysics
- · Replies 5 ·
How to know whether motion is simple harmonic motion or not?
- Beelzedad
- · Replies 17 ·
At what angle do we have to kick a ball up the hill for n-rebounds?
- bolzano95
- · Replies 10 ·
Proving Acute Angles from Two Equations
- Saptarshi Sarkar
- · Replies 8 ·
Time it takes for the rocket to fall down
- Noah159
- · Replies 1 ·
Motion in Electric and Magnetic Fields -- (Uni Level Dynamics)
- SianRR
- · Replies 14 ·
What are the possible quantum states of an electron relaxing from n=4 to n=3?
- jisbon
- · Replies 1 ·
How does the rotation of Earth affect the height of a tidal bulge?
- etotheipi
- · Replies 1 ·
Inclined Plane Forces - with a twist
- Spencer25
- · Replies 2 ·
Find the accelerations of all three blocks and the tension in the rope
- rashida564
- · Replies 2 ·
Understanding Total Voltage in Parallel Circuits
- physics_CD
- · Replies 6 ·
Kirchhoff's Rules for analyzing this circuit with batteries and resistors
- nmsurobert
- · Replies 6 ·
Analyse the cutting force of this bolt cutter
- BiostudentWouter
- · Replies 4 ·
Average current around a magnetic loop that changes its shape
- Alefan_
- · Replies 5 ·
Physics: How much is this person's femur compressed?
- brittanyr
- · Replies 9 ·
Torque with an oddly shaped lever
- Mike Lessard
- · Replies 1 ·
Tension in a rope wrapped around a shaft, pulling in a mass
- rashida564
- · Replies 16 ·
Problem involving friction, with a mass being pulled up a slope
- Helena Durrant
- · Replies 1 ·
A circuit with switches, capacitators and resistors
- eyespy
- · Replies 6 ·
Magnetic field Calculation of a Square Wire Loop (with a changed segment)
- Physicslearner500039
- · Replies 1 ·
Gamma factor when doing four momentum problems
- bonbon22
- · Replies 3 ·
How can you calculate change in length without force and area units?
- chriscarson
- · Replies 9 ·
Electric field between two capacitor plates (proof)
- Harry17
- · Replies 4 ·
Circuit diagram questions -- 3 Light Bulbs in a 120V circuit
- joshqg
- · Replies 4 ·
Conventional current, magnetic fields and magnetic poles of different diagrams
- joshqg
- · Replies 16 ·
Two movable pulleys lifting a mass
- rashida564
- · Replies 28 ·
Is the Chain Rule Applied to Spherical Polar Coordinates Different?
- physconomics
- · Replies 16 ·
Pressure due to two liquids in a U-tube
- brotherbobby
- · Replies 2 ·
Infinite Objects: Seeking the Physics Behind the Math
- cemtu
- · Replies 2 ·
How do I find the angle and direction of a magnetic field?
- Physicslearner500039
- · Replies 8 ·
Spacetime Physics (2nd ed.) problem 2-2: Bathroom scale and a Trampoline
- benorin
- · Replies 5 ·
Electric field involving 4 point charges in a rectangle
- dcarmichael
- · Replies 1 ·
What were my mistakes in solving this ladder problem in physics?
- Icefire_16
- · Replies 1 ·
How Can I Solve for the Forces on Pruning Shears with Three Subsystems?
- wnvl1
- · Replies 2 ·
How Do You Calculate Time Ratios in Motion with Drag Force?
- tanaygupta2000
- · Replies 2 ·
Momentum transfer of brittle objects
- sbartyc
- · Replies 6 ·
Conical Pendulum: Solving the Height Issue
- Spencer25
- · Replies 7 ·
Optics (dealing with 2 sources of wavelength)
- jisbon
- · Replies 1 ·
Damped Oscillator and Oscillatory Driving Force
- physconomics
- · Replies 4 ·
What is the Relationship Between Strain and Change in Length in Hooke's Law?
- chriscarson
- · Replies 31 ·
Electron excited from the ground state to a quantum state
- jisbon
- · Replies 5 ·
Light rays passing through a glass prism
- jisbon
- · Replies 2 ·
What is the work done to move this Charge?
- Reneee
- · Replies 3 ·
Finding Angles in a Double slit experiment
- jisbon
- · Replies 4 ·
Finding the distance in an optics system
- jisbon
- · Replies 9 ·
Velocity of the center of mass of the system
- Amik
- · Replies 1 ·
What Is the Magnetic Field at Point P on the Y-Axis?
- Physicslearner500039
- · Replies 9 ·
Acceleration of a moving wedge with a falling block
- Yalanhar
- · Replies 19 ·
Kinetic energy of a ball rolling down a ramp
- kaloyan
- · Replies 3 ·
Magnetic field due to two loops
- Physicslearner500039
- · Replies 4 ·
Use of hard drive magnets to build an MHD propulsion ship
- fRod57
- · Replies 5 ·
Torque on a Beam Due to Gravity
- cs44167
- · Replies 5 ·
Confused About Critical Angle and Echoes?
- Nubira20
- · Replies 2 ·
Electric Fields: calculate the resultant force
- Babybluedino
- · Replies 25 ·
How Do Four-Vectors with Orthogonal Dot Products Determine Each Other's Nature?
- shinobi20
- · Replies 16 ·
Griffiths Introduction to Electrodynamics (Stokes Theorem Corollary)
- cemtu
- · Replies 7 ·
Integration in polar coordinates
- Apashanka
- · Replies 4 ·
Pulleys with Torque: Free Body Diagram Analysis
- rashida564
- · Replies 34 ·
Understanding Tension in Angles: Expert Insights and Tips
- Icefire_16
- · Replies 11 ·
System with Pulleys and a Rope That Might Break
- rashida564
- · Replies 26 ·
Projectile Compresses a Spring Gun
- BrandonInFlorida
- · Replies 10 ·
Mechanics Lab | A Simple Pendulum & a Small Magnet Underneath
- Curious_Student
- · Replies 6 ·
Laser beams interacting with a screen | AM and momentum conservation
- JD_PM
- · Replies 5 ·
Comparing Energy Transfer and Speed Changes in Isolated Systems
- Amik
- · Replies 10 ·
Moment of inertia, conservation of angular momentum and energy
- volodymyr379
- · Replies 5 ·
Rate of fall depends on rotation?
- rzyn
- · Replies 35 ·
Vapor Pressure of Water Below Freezing: How Does It Affect Grain Storage?
- Gopher72
- · Replies 19 ·
Circuit Analysis of a diagram with series and parallel circuits
- joshqg
- · Replies 6 ·
Force due to Surface tension here
- Vivek98phyboy
- · Replies 11 ·
Energy of particle when under a central force
- Saptarshi Sarkar
- · Replies 11 ·
Deriving the first-order system for this governing equation
- currently
- · Replies 6 ·
Explaining Earth's Lower Gravity at the Equator
- lightlightsup
- · Replies 12 ·
What is the efficiency of the circuit?
- Baiatul122001
- · Replies 4 ·
Is work a vector quantity in physics?
- Amik
- · Replies 35 ·
Volume average of mass function
- Apashanka
- · Replies 14 ·
Bow & arrow -- Forces on the Bow
- Bolter
- · Replies 20 ·
Deriving Momentum From Newton's Second Law of Motion
- tomtomtom1
- · Replies 27 ·
Projectile Motion with Air Drag
- trumanf_
- · Replies 3 ·
Entropy change when melting ice then refreezing the water
- yamata1
- · Replies 8 ·
Deciphering this problem statement: Air resistance on projectiles
- cookiemnstr510510
- · Replies 7 ·
Work or Net Work when calculating Power?
- brawler234
- · Replies 5 ·
Meteorology Physics: Apparent wind problem
- Sofina
- · Replies 3 ·
Object thrown at an angle: Initial velocity has to equal speed at t
- wicker558
- · Replies 16 ·